ResearchRouting table, looking glass, RPKI & IRR

16.5.170.0/23 Cogent Communications, LLC

Announced by AS174 Cogent Communications, LLC. RPKI valid Seen by 5 of our 5 looking glass sessions. Also originated by AS3257

What the table says about 16.5.170.0/23

Origin
AS174 COGENT-174
RPKI
RPKI valid
Size
512 addresses
Less specific
none
More specifics
0
IRR route objects
4 exact, 0 covering
In RouteViews
2026-10-13 12:02 UTC

How 16.5.170.0/23 is reached

Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.

AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174
OriginAS174 Cogent Communications, LLC
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated5d 9h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 3257
OriginAS3257 GTT Communications Inc.
Origin codeIGP
Communities903:900 903:13760
Updated5d 17h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 1299 174
OriginAS174 Cogent Communications, LLC
Origin codeIGP
Communities36295:100
Updated5d 17h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174
OriginAS174 Cogent Communications, LLC
Origin codeIGP
Communities174:21001 174:22013
Updated5d 17h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174
OriginAS174 Cogent Communications, LLC
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated9d 11h ago

Route origin authorizations

Covered by a ROA authorizing AS174 to originate 16.5.170.0/23 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
16.5.170.0/23/24AS174 COGENT-174ARIN
16.5.170.0/23/24AS3257 GTT-BACKBONEARIN

Route objects

Registered in the IRR for this prefix and the ones covering it. Look it up live.

RouteOriginSourceDescriptionMaintained by
16.5.170.0/23AS174 COGENT-174ARINUsed by EndUserMNT-DCL-577
16.5.170.0/23AS3257 GTT-BACKBONEARINUsed by EndUserMNT-DCL-577
16.5.170.0/23AS174 COGENT-174RADBautogenMAINT-AS834
16.5.170.0/23AS3257 GTT-BACKBONERADBautogenMAINT-AS834

Check 16.5.170.0/23 live